Iethod of and apparatus for  making glass rollers



No. 617,92i. j Patented Jan. 17, I899.

w. BUTTLER. v METHOD OF AND APPARATUS FOR MAKING GLASS BD'LLERS.

. (Application filed Dec. 14, 1897.) I I (No Mqdeli). 2 Sheets-Sheet WITNESSES INVENTOR No. 6l7,92l. Patjnted lan. I7, I899.

W. BUTTLER. METHOD OF AND APPARATUS FOR MAKING GLASS ROLLERS.

(Application filed Dec. 14, 1897.)

(N0 Model.)v 2 Sheets-Sheet 2.

. A A A 'i I .6 A i6 M 5 i 6 fif l I W I 14 I if. f 5% mvEN'roR wn'nsssss ilrvitn Aren't lPlFlCE \VILLIAM BUTTLER, OF REDKEY, INDIANA.

' SPECIFICATION forming part of Letters Patent No. 617,921, dated January 17,1599,

' Application filed December 14. 1897. seen No. 661,786. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM BUTTLER, of 'tedkey, in the county of Jay and State of Indiana, have invented a new and useful improvement in Methods of and Apparatus for Making Glass Rollers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a general side elevation, partly in section, of the apparatus I employ. Fig. 2 is a similar view of the lower part of the apparatus on a larger scale and with the hollow former in its upper or raised position; and Fig. 3 is a vertical section of the pressmold wherein the blank is formed, showing my pecu iar shape of blank.

My invention relates to the forming of glass cylinders or rollers, and is designed to provide an improved method of, as well as apparatus for, the making of such rollers. lleretofore it has been attempted to obtain these rollers by stretching a hollow blank and maintaining an air-pressure within it. It has been found, however, extremely difficult to keep the roller of the same size throughout with this method, which method demands a very considerable degree of skill in the operator. lily invention is designed to overcome this difficulty; and it consists, broadly, in pressing a hollow blank over an internal former, by the use of which the roller may be maintained of a uniform size throughout. It also consists in rotating such former while the glass is drawn over it, whereby a finelyfinished surface is imparted to the glass.

It further consists in a new and improved apparatus therefor, as hereinafter described and claimed.

in the drawings, 2 2 represent vertical standards of my preferred form of machine, these standards carrying at the upper end a single-acting motive cylinder 3. To the lower end of the piston rod l of this cylinder is secured a cross-head 5, which is guided upon the standards 2 i, as shown, and is provided with depending rods (5 (i, to the lower ends of whichis secured a second cross-head 7, also guided upon the standards 2 2. To the central portion of the cross-head 7 is secured a hollow shaft 8, having a spline connection with a bevol-i'vheel 9, which by means of suitable connections may rotate the shaft in any and all positions thereof.

1O istan arzn secured to one ot the standards and having collar 11, which supports the bevel-wheel 9 in proper place. To the upper end of the shaft 8 is secured a circular disk or head 12, which is centrally perforated to allow air under pressure to pass through the hollow shaft and into a hollow former 13, which is secured to the head 12. The former 1-3 is of general cylindrical form and is pro- 16, extending through arms 17, secured to the cylinder. The lower end of this cylinder is provided with a head 18, which is provided Witha suitable packing surrounding the shaft 8, which passes therethrough, so as to prevent leakage of the compressed air at this point.

To the intermediate portions of the rods 6 6 is secured a platform 19, which moves vertically with these rods and upon which the operator stands during the formation of the glass roller.

is a compressed-air reservoir having a pipe ?2l,leading to the motive cylinder 3, and another pipe 22, to the lower end of which is connected the iiexible hose 23, the other end of which is secured in the cross-head 7, so to admit air to the hollow shaft 8 in all positions thereof. The pipes 21 and :22 are provided with suitable vaives 24,. by which the air-supplies may be regulated as desired.

In Fig. 3 I show the imprcyed form of blank which I employ and which is formed in the press-mold illustrated in this figure. The mold consists of a bottom plate 26, made in two parts, with a central opening of the diameter of thenose or the hlowpipe 25, which is clamped within this hole, as shown. 27 is a one-part cylinder which restsnpon the basepla-te upon which is placed the two-part mold 28, upon which lies the ring 29. When repented.

A- are it the penition shown in this :llggnri'i, the girl 5 dropped into the mold, and the plunger beinu' loreed thereinto as shown, n. sinnll pin all the lower end of the plunger orders the nose oi the pipe and forms it thin Web of glans:- i'horoin. The plunger then being witlnlrnwn, the thin glass within the pipe is opened by {t rod and the parts being removed the llllllili may be token out with the 1o ntiz iebed thereto, the cylinder if liftornrdlyoili the blnnlc and leaving; its n iritlunilsoon it will be noted that blnolro thus formed. in open Lil one end :rud provided at this end with an annular ring, 0, the innin body of glues-a in the blunt:

ioentod. in its sid n, which are thirlc 21S shown, no no 1 contain n eonu r e unn'inntoi hot gl;n riliieh iormn the nnpi ily from which tile/roller drown. "be other end of the blnnl: in eoiniiclornbl a' thinner than ll'ri olden, so an to become cold. no oornpnred with its sidi; 'll'n: rino I) in mode oi eubotnntinlly t s nine no the upper end of the cylinder .l:3. Jill when the blnn elmnped upon this. i linder or enpporl in the position shown in bid. l.

The operation isnn follows: 'tlu. pylons blank o bovine: been formed and elzunpod noon the oyliniiiriozil bnee if), the operntor. ntnndingz; upon the pluiiorin l9, ljiyopernti tlievnlrel fi l ndnlilr'e eoinprt "ed air to the oylil'ider 3 nod to tho Y ollim nlniir rl. j. rotnry inol ion being: imported to the shattbg' the bevel- \rlieol 5, the upper end ol' the lualloxr ohnper. eonlnetinn; with the eouipnrntirely eold end portion of tho bhi'nh, strotehee th s n'nrdtr nod tends to pull the mine ngninst the bony of the former. .lit the more time the {lll'jllGSEilll'O within the former pl ing throiurli the holes: inits upper end in regulziteil by the operator. who placed his thumb or illOlilll over the upporend oi. pipe 525, thus prevonl'il the glans from being drown Loo tiggglitly W host the former. 'lhi: "mubstnntbvli r the only l'nnetion of the air-pressure, 'Ioruier, there being); no nulintn-ntiul E within the lllt'i' 'llillit: in the diameter ol the e "nder over tlint o! the blnnlc. li'hen the port; llIUO pnssed into the position shown n l-in'. 2, tho

nines blnnl; lniving been. otretehtd into the.

For forming n hollow blank, of memo; for regg'lnes roller therein shown the valves El nre closed, and tho lfornior moving down. to its norinul position the cylinder only in: uneinniped nnd remove-ii, :tndthe operntion ie The cylinder i5 is filled with wu-- tor, no that when the revolving plug is lowered it; will be immersed nod cooled.

The zu'lvn-ntn ges of my inn, ition renuit from the tart that by nub-nun ol' the interior l'orinor n perfeot cylinder may be UlJlIZLllHIil which oi the same diameter mid thickness throughout, while it rotation in imported to the former a. i'nely-iiniehod nurlzwo will be obtained upon the interior of the roller. The vnro betueen. the Former and the blnuli pit-route the gluon Front pinehingabont the former, while owing to the peculiar slinpe of the blank the cold end portions thereof give substantially rigid oupportlai, while the thick hot sides form a reservoir of hot glass from which the cylinder in d rnwn.

The former may be used without an airpressnre therein and may be r iitnltedor not, as desired. The plug may be :iitz'itionnry and. the cylinder moved downwardly over it, and the parts of the machine employed may be varied widely without departing from my invention, since I consider myself the first in form a. hollow blank and. ntrotoli the name into a cylinder by an internal former, o well as the lirst to form it blnnlc of the size of the finished cylinder and form the (-ylindor by stretching this blank end wise.

I eluln1- 1. The method of formiuggrlnss rollers eonsisting, in forming a hollow blunlr ol. the some size {LS the finished roller and stretching the some longitudinally over an Internal former while at least a portion of the sides of the blank is out of lateral eontnetnith any Forn1- ing apparatus for the blnnlc.

The method of forming: glans rollers or eyliiuiers consisting: in forming a. bin-nil" and stretching the some lohgitiulinnlly by inter- .nnl pressure applied to one end, thereof while at least a portion of the sides of the blnnlc is out of lnternl. Contact with nny forming nppnratus for the blnnlc.

Ii. lhen1othod oi lot-wing gluon oylindern oonsieting in forming at hollow gloss blnnk with an inward projection at one end, elninping the opposite end thereof and ntretel'iing the Fhlille longitudinally by intornnl presisuro applied to an inward projection nt the other end of the blank While at least oi portion oi. the sides of the blank is out of lateral (301itnot with any forming apparatus for the blank.

t. The method of formingglnnn oyliniliori-s consisting in forming nhollow bionic, clamp-- ing one end thereof, stretching the some lung tudinnlly over on internal 'l'ornior by pronsure applied to the inner surlnoe ol' the other end of tho blnnlc and admitting air between the blank .tnd the inner former.

ii. in np 'niratus for the formation of nines cylinders, the eoinbirmtion with uppurntun tanning at least a portion of the blank t'roni wild apparatus, a former nritonged to enter the blank and means for moving the blank nnd former relatively to each other to stretch the blank longitudinally.

(i. In apparatus for the fornmtion of. glues cylinders, the oonibiinttion with :unnu'otun for forming it hollow bionic, of memo; for releasing at least it portion oi. the blank from said apparatus, 1, hollow, former :trrnngod to enter the blank and menus for loreiin, the former against inwnrdlyprojoeting portimn; of the blank, to elongate the some.

7. ln apparatus for tho l'orinntion oi. glues o vlindors, the combination with nppnrutnn I least a portion of the blank from said forming apparatus, a clamp arranged to secure one end of the blank, a hollow former arranged to enter the'blank, and means for forcing the same against the inwardly-projecting portion thereof to elongate the same.

8. In apparatus for forming glass cylinders, the combination with apparatus for forming a hollow blank, of means for holding one end of the blank, a hollow perforated cylindrical former arranged to enter the blank and stretch it endwise and shape it, means for moving the blank'and former relatively to each pther, and means for supplying fluid under pressure to the former.

9. In apparatus for theformation of glass cylinders,'the combination with apparatus for forming a hollow blank, of means for releasing at least a portion of the blank from said apparatus, a rotatory former arranged to enter the blank and means for moving the blank and former relatively to each other to stretch the blank longitudinally.

10. In apparatus for forming glass cylinder's, the combination with a mold in which a hollow glass blank is formed, of means for releasing at least a portion of the blank from goithis mold, an internal former arranged to enter the blank, and means, for moving the blank and former relatively to each other to stretch the blank longitudinally.

11. In apparatus for forming glass cylinders, the combination with a mold in which.

a hollow glass blank is formed, of means for releasing the blank fromthe mold, a hollow support having a clamping mechanism for gripping one end of the hollow blank and a reciprocatoryformer arranged to move through the support and stretch the blank.

12. In apparatus for forming glass cylinders, the combination with a hollow support having means for clamping the hollow glass blank at one end thereof, of a hollow former of greater length than the blank arranged to reciprocate through the hollow support and elor ate the blank, said former having perforations in its upper portion, and means for supplying fluid under pressure to'tho former.

13. In apparatus for the formation of glass cylinders, the combination with a mold arranged to form a hollow glass blank, of a separate hollow support having means for clamping the hollow glass blank thereto, a reciprocatory former movable through the support and into the blank, and arranged to elongate the same, and mechanism for rotating said former.

1-1. In apparatus for the formation of glass cylinders, the combination with mechanism for clamping one end of a hollow glass blank, of a reciprocatory former of greater length than the blank arranged to enter thesame and stretch the lank longitudinally, said former being hollow and having perforations at one end thereof, means for supplying fluid pressure to the former, and a platform or support for the operator arranged to move with the former.

\15. In apparatus for forming glass cylinders, the combination with apparatus for forming a hollow glass blank, of a separate hollow support arranged to contain a cooling fluid and having at its upper end clamps for securing the hollow glass blank thereto, and a reciprocatory "former arranged to move through the support and stretch the blank longitudinally.

16. The method of forming glass cylinders consisting in forming a hollow blank, releasing at least a portion of the blank from the forming apparatus therefor, and then stretching the blank longitudinally overan internal former.

17. In apparatus for the formation of glass cylinders, the combination with mechanism for clamping one end of a hollow blank, of a hollow former perforated at one end arranged to enter and stretch the blank longitudinally,

means for supplying fluid pressure to the former, and a pipe arranged to be connected to the blank, and by which the air-pressure from p the interior of the blank may be regulated.

' In testimony whereof I have hereunto set my hand.

WILLIA'Ivl BU "ILER.

Witnesses:

Faun WoL'rJnN, M; II. SLONN. 

